- 13550 - Transportation Control Instrumentation
- 16050 - Basic Electrical Materials and Methods
- 16120 - Conductors and Cables
- 16130 - Raceway and Boxes
- 16140 - Wiring Devices
- 16310 - Transmission and Distribution Accessories
- 16330 - Medium-Voltage Switching and Protection
- 16340 - Medium-Voltage Switching and Protection As
- 16400 - Low-Voltage Distribution
- 16430 - Low-Voltage Switchgear
- 16440 - Switchboards, Panelboards, and Control Cen
- 16450 - Enclosed Bus Assemblies
- 16470 - Power Distribution Units
- 16800 - Sound and Video
- 26 05 00 - Common Work Results for Electrical
- 26 05 13 - Medium-Voltage Cables
- 26 05 19 - Low-Voltage Electrical Power Conductors and Cables
- 26 05 23 - Control-Voltage Electrical Power Cables
- 26 05 33 - Raceway and Boxes for Electrical Systems
- 26 13 00 - Medium-Voltage Switchgear
- 26 13 13 - Medium-Voltage Circuit Breaker Switchgear
- 26 13 16 - Medium-Voltage Fusible Interrupter Switchgear
- 26 13 19 - Medium-Voltage Vacuum Interrupter Switchgear
- 26 18 00 - Medium-Voltage Circuit Protection Devices
- 26 18 13 - Medium-Voltage Cutouts
- 26 18 16 - Medium-Voltage Fuses
- 26 18 19 - Medium-Voltage Lightning Arresters
- 26 18 23 - Medium-Voltage Surge Arresters
- 26 18 26 - Medium-Voltage Reclosers
- 26 18 29 - Medium-Voltage Enclosed Bus
- 26 18 33 - Medium-Voltage Enclosed Fuse Cutouts
- 26 18 36 - Medium-Voltage Enclosed Fuses
- 26 18 39 - Medium-Voltage Motor Controllers
- 26 20 00 - LOW-VOLTAGE ELECTRICAL TRANSMISSION
- 26 23 00 - Low-Voltage Switchgear
- 26 24 00 - Switchboards and Panelboards
- 26 25 00 - Enclosed Bus Assemblies
- 26 26 00 - Power Distribution Units
- 26 27 16 - Electrical Cabinets and Enclosures
- 26 27 19 - Multi-Outlet Assemblies
- 26 27 23 - Indoor Service Poles
- 26 27 26 - Wiring Devices
- 27 40 00 - AUDIO-VIDEO COMMUNICATIONS
- 33 71 00 - Electrical Utility Transmission and Distribution
- 33 71 23 - Insulators and Fittings
- 33 71 26 - Transmission and Distribution Equipment
- 33 77 00 - Medium-Voltage Utility Switchgear and Protection Devices
- 33 77 26 - Medium-Voltage Utility Fusible Interrupter Switchgear
- 33 77 33 - Medium-Voltage Utility Cutouts
- 33 77 36 - Medium-Voltage Utility Fuses
- 33 77 39 - Medium-Voltage Utility Surge Arresters
- 33 77 53 - Medium-Voltage Utility Reclosers
- 34 40 00 - TRANSPORTATION SIGNALING AND CONTROL EQUIPMENT